75591097 has 2 divisors, whose sum is σ = 75591098. Its totient is φ = 75591096.

The previous prime is 75591083. The next prime is 75591107. The reversal of 75591097 is 79019557.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43283241 + 32307856 = 6579^2 + 5684^2 .

It is a cyclic number.

It is not a de Polignac number, because 75591097 - 2⁷ = 75590969 is a prime.

It is not a weakly prime, because it can be changed into another prime (75591077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37795548 + 37795549.

It is an arithmetic number, because the mean of its divisors is an integer number (37795549).

Almost surely, 2^75591097 is an apocalyptic number.

It is an amenable number.

75591097 is a deficient number, since it is larger than the sum of its proper divisors (1).

75591097 is an equidigital number, since it uses as much as digits as its factorization.

75591097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 99225, while the sum is 43.

The square root of 75591097 is about 8694.3140615002. The cubic root of 75591097 is about 422.8213248330.

The spelling of 75591097 in words is "seventy-five million, five hundred ninety-one thousand, ninety-seven".